Building-block.



E` J. MOGETTIGAN.

l BUILDING BLOCK. APPLICATION FILED 13150.?, 1910d ygfygo v Patented A131216, 14912 W TNESSES :j y Eng/arc( J Mvflq'effgan v INVENTOH EDWARD J. MCGETTGIAN, OF CLEVELAND, OHIO.

'earner orribile- :eUiLnINe-BLCK.

Specification of Letters Patent.

rateatea apr. le, reis.

ipcaton filed December 7, 1910. Serial No. 596,038.

To" all whom. 25 may concern v Be it known that .l, EDWARD J. MCGET- Tram, citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Buildingl Blocks, of which the following is arspecification.

This invention relates to building blocks and vparticularly to that class thereof known as hollow tile blocks.

The object of the invention is to provide a hollow interlocking tile characterized by an absence of straightoints and which can be so laid in a wall as to produce a water proof wall. The tile is so constructed as to break joints between the courses, thereby insuring greaterstrength.

A further object of the invention is to provide a tile which can be built up to produce walls Ofyarying thickness, and it will vbe attended with the various other advan- The invention is illustrated in the accoinpanying drawing which is a perspective view of a wall section constructed of the blocks.

Referring specifically to the drawings it will be seen that the blocks'are synnnetrically constructed, to fit one upon the other, each block comprising a hollow rect-angular tile the side or vertical webs of which are indicated at l0, and the top and bottoni or horizontal webs at 1I, with a middle vertical web 7 extending lengthwise and dividing the hollow of the block in two parts.

Integral with each upper and lower web of the block is a hollow extension consisting of side webs S and 8 and a cross web 6, the whole forming a rectangular block with offsets or extensions at the top and bottom, said'extensions being located respectively en opposite sides of the median line. These extensions areof equal height, so that when the blocks are laid in a wall 'the extensions on one block ,will lill the correspondingspaces beside the extensions of the corresponding blocks of the'courses above and below. Preferably the height of the extensions. is equal to half the height of the body of the block, but this is immaterial, as the steps or offsets may be of any heightdesire( It will be noticed that the surface of the inner wall 8 of each extension is inline with the middle of the intermediate web 7 of the body of the block. This is a feature of iniportance with respect to strength, since the joint is brought directly over the web 7, instead of being offset therefrom, and the weight is thus equally distributed to all parts of the body of the tile, since the weight 'on the meeting webs 8 will rest directly over the web 7, and this is carried on up throughout' the wall. There is consequently 'much less tendency to crush the body of the block at either end thereof, than there would be`if t-he line of middle support were not direct or straight. This is also true with respect to the horizontal intermediatc webs 11 and the wallsv of the lnain body in line therewith, so that the saine adw vantage results, whether the blocks be laid in vertical or horizontal courses.

The blocks thus constructed will be set one upon the other in the inanner illustrated, with mortar at the joints between the top and bottoni faces.

The joint faces, and also the side faces, of

the block are corrugated, or ribbed lengthwise :s shown, which assists in forming a bond between the blocks, as well as pcriuitting the application of stucco or plaster directly to a wall or partition inade of the blocks.

ln laying thetile the blocks will be so set that the extensioi'i on the bottoni thereof will be locatedat ortoward the outside of the wall, or that part thereof exposed to water or the weather. That is, in the drawing the outer side is represented at the left and the 'inner side or surface at the right. By this means, the joint between the walls has an upwardly extending step or part, at thev middle of the wall,and so if water should soak into the joint from the outside it will 'not corne through the wall, because of the rise in the joint. in other words the extensions lap downwardly on the outer side., the upper extension of eachblock being-on the inner side of the Wall. This is an advantage over those blocks in Which the joints are straight across the Wall, 'and also over those blocks which, although symmetrically constructed with steps or extensions, nevertheless when set in a,wall produce downwardly stepped joints at alternate courses.

Having thus described Amy invention, what' I claim, as. new and desire to secure by Letters Patent is A building block comprising a, main body Aand extensions at opposite lsides of said and of the extensions will be in line, vertically and horizontally, respectively, with the said intermediate Webs of the blocks, i'n the respective courses, said extensions of each block being located respectively at opposite sides of the line of the intermediate web 7.

.ln testimony whereof, l do affix my signature in presence ot two witnesses.

EDWARD J. MGGETTTGAN.

Witnesses: 4

JOHN A. BoMMHARnT, S'rnmrim J. lioomvnm.. 

